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3 years ago

7

Explain why the model of this chemical reaction obeys the Law of Conservation of Matter.

2 answers:

OverLord2011 [107]3 years ago

7 0

Answer: Yes

Explanation: The law of conservation of mass explains that the mass of the products in a chemical reaction must equal the mass of the reactants. The law of conservation of mass is useful for a number of calculations and can be used to solve for unknown masses, such the amount of gas consumed or produced during a reaction.

Ghella [55]3 years ago

3 0

Answer:

because there are the same number of atoms of each element shown on both sides

Explanation:

i did the usa test prep

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Advocard [28]

Answer:

i think its 1-10 ´ 10-15 m

Explanation:

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3 years ago

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A hockey puck has a coefficient of kinetic friction of μk = .35. If the puck feels a normal force (FN) of 5 N, what is the frict

alina1380 [7]

Answer:

The frictional force is $F_f = 1.75 \ N$

Explanation:

From the question we are told that

The coefficient of kinetic force is μk = 0.35

The normal force felt by the puck is $F_N = 5 \ N$

Generally the frictional force that acts on the puck is mathematically represented as

$F_f = \mu_k * F_N$

=> $F_f = 0.35 * 5$

=> $F_f = 1.75 \ N$

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3 years ago

Which of the following is NOT common of elite Shang burials?

Zigmanuir [339]

Answer:

Large above ground mausoleums were not common in the elite Shang burials.

Explanation:

Large, above the ground mausoleums were not common so the answer is option B.

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2 years ago

A boat heads due North for 3.00 km to reach a red buoy. It then changes direction and heads in a direction of 30.0 degrees South

Helga [31]

Position of B :

x = 4.66*cos 30 = 4.036

y = 3-4.66*sin 30 = 3-2.33 = 0.67

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heading = arctan y/(x-1) = arctan 0.67/(3.036) = 12.44° south of west

hope this helps :)

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3 years ago

If do 50 J of Work in 20 seconds, what is my Power ?

pochemuha

Answer: P= W/t so P=50/20 =2.5 W

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